Lubricating device for shaft bearings



May 30, 1933. GNYK 1,912,273

LUBRICATING DEVICE VHAF'I BEARINGS Original Filed Feb. '7, 1929 INVENTOR3B? mAH/0.

ATTOVRNYS @Patented May 30, 1933 PATENT IGNA'rz GoNYK, or VIENNA,AUSTRIA LUBRICATING :DEVICE non SHAFT BEARINGS Original application ledFebruary 7, 1929,'Seria1 No. 338,229, and in Germany December 17, 1928.

Divided and this application led April 9,1930. Serial No. 442,887.

My invention relates to a. lubricatingV device for shafts moreparticularly for the shuttle operating shafts of sewing machines.

This is a division of my application for patent led in the United Statesof America for Sewing machine iled February 7th,

1929, Serial No. 338,229.

The object of my invention is to provide a simple, reliable and cheaplubricating fde- 10 vice for two or more bearings of a shaft.

IVith this object in view my improved lubricating device comprises twoannular parts mounted on the shaft and movable relatively to each otheralong the said shaft.

Such partsenclosing between them a chamber in permanently openconnection with a longitudinal bore of the shaft such bore leading tothe lubricating points, that is to say to the bearings to be lubricated.

The annexed drawing, comprising a view in elevation partly in section,shows by Way of example an embodiment of my improved lubricating devicein longitudinal section, t-he lubricating device being applied to thedriving shaft for'the shuttle of sewing machines.

The shaft 77 has two bearings 78, 79 Withl the lubricating points 80, 8lwhich are connected with the lubricating device located approximately inthe middle of theshaft by a longitudinal bore 82 of the shaft andtransverse bores 87. The lubricating device consists of two parts 83,84: enclosing a chamber 85 for the lubricant, one of these parts, ,83,is fast on the shaft while the other part 84;

may be screwed on the former. These two parts carry packing rings 86 forpreventing leakage of the lubricant along the shaft.

If the part 84 is further screwed on the xed part, say bymeans of itsknurled rim, the lubricant contained in the chamber 85 is forced throughthe longitudinal bore 82 of the shaft to the lubricating points 80, 81of the bearings 78, 79.

Vhat I claim is:

1. The combination with a shaft having a longitudinal bore kand passagesrunning from said bore to the periphery of said shaft, of supportingbearings, and a lubrieating device located on said shaft between saidbearings, said lubricating device comprising amember secured to saidshaft, and a second member movable upon said rst member and with saidfirst member forming ay chamber communicating with certainl of saidpassages. l 2. The combination with a shaft having a longitudinal boreand passages running from said bore to the periphery of said shaft, of abearing lubricating device` comprising a member secured to said shaft,and a second member movable upon said first member and with said firstmember forming a chamber communicating withcertain of said passages,said second member,'having a sliding engagement with said shaft, and ascrew threaded n engagement withjsaid first member.l Y In testimonywhereof `IV have affixed my signature.

Y IGNATZ GONYK.

